Piston-valve.



C. J. BARLEY. PISTON VALVE. APPLIGATIQN FILED MAR. 26, 1913.

Patented Dec. 9, 1913.

m m W m m .UW o I 5 w m S w g 0, n l /w G. J. BARLBY.

PISTON VALVE. APPLICATION FILED MAR. 26, 1913. v

2 SHEBTS-SHEET 2.

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lllllIL I I l Patented Dec. 9, 1913.

- To ail whom it may concern:

- of Pennsylvania,

.-lcconio-tives, and particularly to the ends flared outward CLARENCE J.BARLEY, 0F ALTOONA, PENNSYLVANIA.

PISTON-VALVE.

ose-sea.

' Specification of Letters Patent.

PatentedDec. 9', 1913.

Application filed March 26, 1913. SerialNo. 7 57,023.

Be it known that I, Cmnrnvcn J. BARLEY, a citizen of the United States,residing at Altoona, in the county have invented certain new and usefulImprovements in Piston-Valves, of which the following is aspecification.

This invention relates tothe subject of piston valves which constitute apart of the locomotive valve 'geaiywhile the primary object of theinvention is to provide an integral piston valve body, preferablyconstructed of steel tubing, with the ends thickened and flanged outwardfor the purpose of engaging the bull ring of the valve.

Another object of this invention is to provide a piston valve body thatis free from steam leaks, light and durable and at the same time easilyconstructed and applied. A still further object of this invention is toprovide an integral valve body with the so as to engage the in such man.led-ge on the end of the spider,

ner as-to reduce the number of parts associated with a steam pistonvalve.

With these and many other objmts in view, which will be more readilyapparent as the nature of the invention is better understood, the sameconsists of the novel construction, combination and arrangement of partsas will be hereinafter fully pointed out, illustrated and claimed.

The essential feature of the invention is quite susceptible to departingfrom the spirit or scope of the invention, but a preferred andthoroughly practical embodiment of the same is shown in the accompanyingdrawings, in which 2-- Figure 1, is a side elevation of the piston'valve of the typeusually found upon locomotives, embodying my invention.Fig. 2, is an end view of the parts shown in Fig. 1 of the drawings.Fig. 3, is an enlarged sectional view of the valve shown in Fig. 1 ofthe drawings. Fig. 4, is a longitudinal sectional view of a locomotivesteam cylinder, showing my improved piston valve in position.

Like reference numerals designate corre sponding parts throughout theseveral figures of the drawings.

In carrying out this invention no' change Copies of this patent may beobtained for of Blair and State 'difliculties experienced wlth abovevalve constructions, and contemplates with the ring some variationwithout.

the body of said stem,

is contemplated in the piston valve, other than forming the body 10integral with the ends 11, the construction heretofore employing two endpieces and a central piece,

.which were riveted together; this construction having been foundunsatisfactory, due to the number of parts, leaky joints and a weakvalve stem. One custom usually resorted tofor the purpose of eliminatingthe above named difiiculties, is to cast the valve all in one integralpiece, but this construction has its disadvantages due to its excessiveweight.

This invention successfully eliminates the the use of a steel tubing 10,having thickened flanged ends 11, adapted to engage the bull ring 12, ina recess 13, cut concentric and forming a centering means therefor. Thehull rings 12 are held in spaced'relat-ion by the bolts 14, which passthrough the hub 15 of the said ring and hold the parts firmly together.

In the construction of this piston valve itis not essential that thecentral portion 10 be of a thinner section than the end portion 11, butthis construction materially reduces the weight, and with the flangedends thickened in section, the process of flaring and Hanging isaccomplished without splitting the material, which is invariably thecase when a light end section is used.

From the above description it is believed that the many advantages ofthe heroin described pist-on valve will be quite readily apparentwithout further elaboration, and

lVhat I claim and desire to be secured by Letters Patent is Thecombination of a piston valve body having a recessed flanged end whosewall is of greater cross section than the wall of and a spider fittingin said recess portion, a bull ring held by the spider and means spider.

In testimony whereof I aiiix my signature in presence of two witnesses.

r I CLARENCE J. BARLEY. 'Witnesses N. E GEE,

Washington, D. G.

both oi. the

for securing the

